CN1125524C - Plastic capsulation submerged motor and its capsulation material and technology - Google Patents
Plastic capsulation submerged motor and its capsulation material and technology Download PDFInfo
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- CN1125524C CN1125524C CN 01108064 CN01108064A CN1125524C CN 1125524 C CN1125524 C CN 1125524C CN 01108064 CN01108064 CN 01108064 CN 01108064 A CN01108064 A CN 01108064A CN 1125524 C CN1125524 C CN 1125524C
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- stator
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Abstract
The present invention relates to a plastic-capsulation submersible motor, a plastic-capsulation material thereof and a plastic-capsulation technology thereof, which is characterized in that integral vacuum capsulation is carried out to a stator by using an epoxy-capsulation material with high-temperature curing and heat conduction, a capsulation layer on the inner periphery of the stator and encapsulation sections at both ends of a winding form a sealing stator with the shell of the stator, and plastic-capsulation end surfaces at both ends of a magnetic steel section and a stainless steel sleeve form a rotor. The present invention is especially suitable for permanent-magnet direct current brushless submersible motors and permanent-magnet synchronous submersible motors, and the submersible motor of the present invention has the advantages of simple structure, small volume, low cost, good insulation property and high efficiency.
Description
Technical field:
The present invention relates to submersible motor, especially a kind of permanent-magnet DC brushless submersible motor and permanent-magnet synchronous submersible motor.
Background technology:
Traditional submersible motor has dry type and liquid-filled two kinds on insulation mode.Dry-type submersible motor adopts mechanical seal to make motor internal and outside isolated usually.The motor internal winding is not corroded by outside liquid, with the insulation property of protection motor windings.The problem that exists is, because this motor requires to adopt reliable mechanical seal, thereby complex structure, volume is big, mechanical loss is big, efficient is low, the winding insulation poor reliability.Liquid-filled submersible motor adopts polyethylene nylon sheath wire type winding to insulate usually, and the problem of bringing simultaneously is, the motor windings copper factor is low, and motor volume is big, current density is big, efficient is low, the manufacturing cost height.
Summary of the invention:
Technical problem to be solved by this invention is to avoid above-mentioned weak point of the prior art, provide a kind of simple in structure, volume is little, production cost is low, good insulation preformance, plastic packaging submersible motor, its capsulation material and plastic package process thereof that efficient is high.
The technical scheme that technical solution problem of the present invention is adopted is:
The present invention constitutes band winding stator structure by stator cage, stator core, three phase windings and winding outgoing cable and joint, constitutes rotor structure by rotating shaft, yoke, magnet steel and stainless steel steel bushing.
Design feature of the present invention is: described band winding stator adopts the plastic packaging structure by the whole embedding of heat conduction PGL, by the embedding layer and the embedding section at winding two ends and the stator that stator cage constitutes sealing that are positioned on the stator circle, stator winding outgoing cable and joint stretch out outside the plastic packaging structure; Described rotor adopts epoxy sealing compound plastic packaging structure, is made of the rotor of sealing its magnet steel section two ends plastic packaging end face and stainless steel steel bushing.
The capsulation material that adopts among the present invention comprises:
A, stator capsulation material are hot setting heat conduction PGL, and prescription is by weight percentage:
6101 epoxy resin 31%, epoxy acrylate 28-32%,
Silicon powder 36-40%, white carbon 0.07-0.13%,
Is 0.9-1.1% with triethanolamine and 2-ethyl 4-methylimidazole by the formulated promoter of 3: 1 proportioning;
B. the rotor capsulation material is the normal-temperature curing epoxy sealing compound, and prescription is by weight percentage:
6101 epoxy resins 45%, silicon powder 43.5-45%,
White carbon 0.8-1.0%, T31 curing agent 7.0-8.5%,
Triethanolamine 1.5-2.1%.
The plastic package process of the above-mentioned capsulation material of the present invention in submersible motor stator and rotor is:
Stator plastic package process step is:
A, do not contain the potting compound of bubble by formulation; B, installation embedding mould; C, insulation vacuum filling potting compound; D, be heating and curing; E, slowly cooling, the hot demoulding; The stator plastic packaging is finished in f, cooling naturally;
Rotor plastic package process step is:
A, do not contain the sealing compound of bubble by formulation; B, the smooth rotor magnetic steel section both ends of the surface of coating; C, place under the normal temperature and to solidify, finish the rotor plastic packaging.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, little, the low cost of manufacture of simple in structure, the good airproof performance of plastic packaging submersible motor of the present invention, volume, efficient height.
2, stator capsulation material of the present invention is a hot setting heat conduction PGL, has the weather resisteant and the ageing-resistant performance of good heat-conducting, excellent sealing ability, excellence.
3, rotor capsulation material of the present invention is the normal-temperature curing epoxy sealing compound, has good toughness, characteristic that adhesion strength is high.Its batching is simple and because to have thixotropic property, an operation of nonvoluntary trickling very convenient.
4, the insulation vacuum encapsulation technology of stator structure of the present invention can make the stator core of entire belt winding form a water-fast integral body, and circle embedding layer is firm, smooth in the stator that forms after embedding, the demoulding.Need not reprocessing.Its gauge satisfies the motor gas-gap designing requirement.The stator internal circular surfaces fineness of plastic packaging can effectively reduce the frictional dissipation of liquid in the air gap far above general stator core.
5, the present invention can be widely used in permanent-magnet DC brushless submersible motor, permanent-magnet synchronous submersible motor etc.
Fig. 1, for structural representation of the present invention.
Fig. 2, for stator structure schematic diagram of the present invention.
Fig. 3, for rotor structure schematic diagram of the present invention.
Embodiment:
Embodiment:
Referring to Fig. 2, present embodiment constitutes band winding stator structure by stator cage 3, stator core 4, three phase windings 2 and winding outgoing cable and joint 1.As shown in Figure 2, band winding stator adopts the plastic packaging structure by the whole embedding of PGL, by the embedding layer 5 and the embedding section 6 at winding two ends and the stator that stator cage 3 constitutes sealing that are positioned on the stator circle, stator winding outgoing cable and joint stretch out outside the plastic packaging structure.
Referring to Fig. 3, present embodiment constitutes rotor structure by rotating shaft 7, yoke 11, magnet steel 10 and stainless steel steel bushing 9.As shown in Figure 3, rotor adopts epoxy sealing compound plastic packaging structure, is made of the rotor of sealing its magnet steel section two ends plastic packaging end face 8 and stainless steel steel bushing 9.
Referring to Fig. 1, in concrete the enforcement, rotor goes out the reinforced seal of shaft part employing with secondary lip 12, allows motor internal and outside liquid that the trace exchange is arranged, and prevents that effectively the foreign material such as silt in the outside liquid from flowing into motor internal.In addition, stator core 4 should adopt the high magnetic conduction non-oriented silicon steel sheet of low-loss, so that motor still keeps less iron loss under high frequency, Electromagnetic Design current density value is lower, copper loss is also little, the hermetically-sealed construction of submersible motor in the prior art, the present embodiment mechanical loss is little, guarantees the motor high efficiency.
In the present embodiment, be the stator capsulation material, and be the rotor capsulation material with the normal-temperature curing epoxy sealing compound with hot setting heat conduction PGL.Concrete prescription is as follows:
Hot setting heat conduction PGL:
6101 epoxy resin 600 restrain, epoxy acrylate 544-622 restrains,
Silicon powder 680-777 restrains, white carbon 1.36-2.53 restrains,
Restrain by the formulated promoter 17.5-21.5 of 3: 1 proportioning with triethanolamine and 2-ethyl 4-methylimidazole.
The normal-temperature curing epoxy sealing compound
6101 epoxy resin, 100 grams, silicon powder 95-104 restrain, white carbon 1.8-2.2 restrains,
T31 curing agent 15.8-16.7 gram, triethanolamine 3.3-4.5 gram.
The stator plastic package process:
1, preparation does not contain the potting compound of bubble.
Get 6101 epoxy resin, 360 grams and acrylic acid 240 grams, be warmed to 50 ℃-60 ℃ and constantly stirring, make light yellow transparent liquid and be epoxy acrylate.In order to allow epoxy resin and acrylic acid carry out esterification reaction fully, make the strand lengthening, improve the toughness of feed liquid, the epoxy acrylate of configuration should be positioned in 25 ℃ of thermostatic chambers stand-by after 48 hours.
Get 6101 epoxy resin 600 and restrain, silicon powder 720 grams and white carbon 2 grams mix jointly with above prepared 600 gram epoxy acrylates, insert in 70 ℃ of baking ovens and heat 1.5 hours, make the abundant fatization of feed liquid.Add promoter 21 grams again, stir, finish batching.
The potting compound that configures is by vacuumizing the emptying entrapped air pockets.
2, the embedding mould is installed.
With cleaning and the dry stator mould of packing into, adjust concentricity, the location is sealing also, and heating is 2 hours in 70 ℃ of baking ovens, inserts in the embedding device, and charging hopper is installed.
3, insulation vacuum filling potting compound.
Pour in the charging hopper when potting compound for preparing is heated to the degree of rarer easy perfusion, start vacuum pump, bleed reinforced, bleed again, reinforced, can divide and finish material filling three times.
4, be heating and curing.
The workpiece that embedding is good places baking oven to be heating and curing, and 70 ℃ were heated 2 hours, and 80 ℃ were heated 3 hours, and 100 ℃ were heated 6 hours.
5, slowly cooling.
Reduce to 75 ℃ and be incubated 3 hours from 100 ℃, reduced to 50 ℃ of meters 3 hours from 75 ℃, continue 50 ℃ of insulations.Slowly cooling can be eliminated internal stress.
6, the hot demoulding.
Be cooled to 50 ℃ at workpiece, taking out after 2 hours is the demoulding, carries out the hot demoulding under 25 ℃ of environment of room temperature.At this moment, the epoxy resin material is also keeping thermoelasticity after solidifying, and the demoulding can produce mechanical damage easily and not.
7, cooling naturally.
After core rod was deviate from, the stator that embedding is solidified was put into 50 ℃ baking oven again, and outage is not heated, and closes oven door, and it is lowered the temperature naturally, when temperature equates with room temperature in baking oven, took out stator, finished the stator plastic packaging.This just eliminates internal stress again, to guarantee that solidifying the back PGL does not ftracture.
The rotor plastic package process is:
1, preparation does not contain the sealing compound of bubble.Each composition is weighed into container in proportion mixes, vacuumize except that bubble.
2, the smooth rotor magnetic steel section both ends of the surface of coating.
3, place curing under the normal temperature.The rotor that was coated with sealing compound is placed under 25 ℃ of room temperatures, after putting in 48 hours, the smooth smooth rotor plastic packaging of promptly finishing of its surface finish.
Stator and the rotor of finishing plastic packaging through above-mentioned technology just can drop into general assembly.
Claims (3)
1, a kind of plastic packaging submersible motor, constitute band winding stator structure by stator cage (3), stator core (4), three phase windings (2) and winding outgoing cable and joint (1), constitute rotor structure by rotating shaft (7), yoke (11), magnet steel (10) and stainless steel steel bushing (9), it is characterized in that described band winding stator adopts the plastic packaging structure by the whole embedding of heat conduction PGL, by the embedding layer (5) and the embedding section (6) at winding two ends and the stator that stator cage (3) constitutes sealing that are positioned on the stator circle, stator winding outgoing cable and joint stretch out outside the plastic packaging structure; Described rotor adopts epoxy sealing compound plastic packaging structure, is made of the rotor of sealing its magnet steel section two ends plastic packaging end faces (8) and stainless steel steel bushing (9).
2, the capsulation material that is adopted in the described plastic packaging submersible motor of a kind of claim 1 is characterized in that,
A, stator capsulation material are hot setting heat conduction PGL, and prescription is by weight percentage:
6101 epoxy resin 31%, epoxy acrylate 28-32%,
Silicon powder 36-40%, white carbon 0.07-0.13%,
The promoter 0.9-1.1% that is mixed with by 3: 1 proportioning with triethanolamine and 2-ethyl 4-methylimidazole;
B, rotor capsulation material are the normal-temperature curing epoxy sealing compound, and prescription is by weight percentage:
6101 epoxy resins 45%, silicon powder 43.5-45%,
White carbon 0.8-1.0%, T31 curing agent 7.0-8.5%,
Triethanolamine 1.5-2.1%.
3, a kind of as the plastic package process of capsulation material in submersible motor as described in the claim 2, it is characterized in that:
Stator plastic package process step is:
A, do not contain the potting compound of bubble by formulation;
B, installation embedding mould;
C, insulation vacuum filling potting compound;
D, be heating and curing;
E, slowly cooling, the hot demoulding;
The stator plastic packaging is finished in f, cooling naturally;
Rotor plastic package process step is:
A, do not contain the sealing compound of bubble by formulation;
B, the smooth rotor magnetic steel section both ends of the surface of coating;
C, place under the normal temperature and to solidify, finish the rotor plastic packaging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01108064 CN1125524C (en) | 2001-01-18 | 2001-01-18 | Plastic capsulation submerged motor and its capsulation material and technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01108064 CN1125524C (en) | 2001-01-18 | 2001-01-18 | Plastic capsulation submerged motor and its capsulation material and technology |
Publications (2)
| Publication Number | Publication Date |
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| CN1305257A CN1305257A (en) | 2001-07-25 |
| CN1125524C true CN1125524C (en) | 2003-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01108064 Expired - Fee Related CN1125524C (en) | 2001-01-18 | 2001-01-18 | Plastic capsulation submerged motor and its capsulation material and technology |
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2001
- 2001-01-18 CN CN 01108064 patent/CN1125524C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1305257A (en) | 2001-07-25 |
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